Tinned green lentils

Any leftovers I have go into the freezer not the fridge. This way you can safely ignore all reheating rules, including rice.

I have a bowl of rice which has been in my freezer for several weeks now. It was put in the freezer within a couple of hours of being cooked. Sometime soon I will get it out, defrost it thoroughly, heat to boiling point and serve.

Do you know anyone who has ever had food poisoning from eating reheated lentils or rice? Have you regularly seen news reports of anyone becoming seriously ill eating home cooked food? I thought not. It may happen, but rarely, which means the vast majority of people safely, heat and reheat all kinds of foods that we are told not to, and they do so safely because they are sensible and either freeze the leftover or only keep it in the fridge a day or two and then reheat it it thoroughly to boiling point.

The label is more about caution than prohibition. If you follow good food hygiene and cool quickly, store properly, and reheat thoroughly, there’s no reason to worry.

It's fine to freeze small portions of the tinned lentils and reheat later. Have done this many times. Same for chickpeas or any other tinned beans.

I reheat as I add the stews and some soups.

I'd recook lentils, but never rice. As long as you've not got meat like ham or chicken mixed in with them, it's fine. All that happens is that they dry out a bit.

I would ignore that as I’ve frequently reheated various types of lentil, both dried and canned, how odd.